CSV till Mobilephone(Get-ADUser) - Powershell

name,mobile
Test Berit,070707070
Test Gösta,070606060
Test Ghördis,070505050

Import-Module ActiveDirectory
Import-CSV "c:\temp\test.csv" | %{
Get-ADUser -$_."name" | Set-ADUser -mobilephone $_."mobile"
}

Get-ADUser : Cannot find an object with identity: '-@{name=Test Berit; mobile=070707070}.name' under: 'DC=ad,DC=local'.
At C:\temp\addmobilenr2.ps1:3 char:11
+ Get-ADUser <<<<  -$_."name" | Set-ADUser -mobilephone $_."mobile"
    + CategoryInfo          : ObjectNotFound: (-@{name=Test ...070707070}.name:ADUser) [Get-ADUser], ADIdentityNotFoundException
    + FullyQualifiedErrorId : Cannot find an object with identity: '-@{name=Test Berit; mobile=070707070}.name' under: 'DC=ad,DC=local'.,Microsoft.ActiveDirectory.M 
   anagement.Commands.GetADUser